Table 2.

Univariate and multivariate logistic regression analyses for the factors associated with long COVID 24 months following COVID-19.

Persistent symptoms or signs	Factors	Univariate OR		Multivariate OR
		95% CI	P-value	95% CI	P-value
Fatigue	≥ Moderate severity	3.02 (1.17–8.05)	0.023	3.02 (1.17–8.05)	0.023
	≥ 50 years old	1.35 (0.60–3.00)	0.456	–	–
	Female	0.95 (0.44–2.06)	0.887	–	–
Anxiety	≥ Moderate severity	2.07 (0.66–5.87)	0.185	2.07 (0.66–5.87)	0.185
	≥ 50 years old	1.18 (0.42–3.04)	0.745	–	–
	Female	0.92 (0.37–2.46)	0.86	–	–
Depression	≥ Moderate severity	1.82 (0.59–5.11)	0.270	1.85 (0.55–5.77)	0.297
	≥ 50 years old	1.30 (0.49–3.26)	0.587	1.30 (0.49–3.26)	0.885
	Female	1.34 (0.53–3.70)	0.551	1.34 (0.53–3.70)	0.478
Insomnia	≥ Moderate severity	1.71 (0.56–4.79)	0.319	–	–
	≥ 50 years old	2.32 (0.94–5.65)	0.065	2.32 (0.94–5.65)	0.065
	Female	1.14 (0.46–2.99)	0.784	–	–
Concentration difficulty	≥ Moderate severity	2.23 (0.80–5.94)	0.112	1.80 (0.60–5.14)	0.281
	≥ 50 years old	2.01 (0.84–4.70)	0.109	1.69 (0.66–4.19)	0.264
	Female	1.26 (0.54–3.15)	0.607	–	–
Cognitive dysfunction	≥ Moderate severity	2.14 (0.54–7.11)	0.235	1.70 (0.39–6.37)	0.451
	≥ 50 years old	2.02 (0.63–6.11)	0.216	1.71 (0.48–5.63)	0.382
	Female	0.93 (0.31–3.14)	0.874	0.98 (0.32–3.40)	0.969
Amnesia	≥ Moderate severity	1.94 (0.73–5.04)	0.177	1.54 (0.52–4.42)	0.424
	≥ 50 years old	2.56 (1.14–5.79)	0.023	2.31 (0.96–5.55)	0.059
	Female	1.93 (0.84–4.74)	0.133	2.07 (0.88–5.28)	0.109
Anosmia	≥ Moderate severity	4.12 (0.97–15.99)	0.042	2.45 (0.51–10.70)	0.238
	≥ 50 years old	4.81 (1.29–19.94)	0.021	3.61 (0.85–16.23)	0.080
	Female	1.95 (0.46–13.33)	0.411	–	–
Ageusia	≥ Moderate severity	4.99 (1.14–20.75)	0.026	2.72 (0.55–12.69)	0.203
	≥ 50 years old	6.48 (1.61–32.26)	0.011	4.70 (1.02–25.25)	0.051
	Female	1.69 (0.39–11.67)	0.526	–	–

CI confidence interval, COVID-19 coronavirus disease 2019, OR odds ratio.